Quote:
Originally Posted by ethan9273
I'm considering a z4m that has stoptech bbk's already on them.
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What suspension? Usually if you clear the BBK you'll clear the strut. I think it's been answered already but a square 9.5x35x18 works nicely with a 5mm spacer in front and a 12mm spacer rear. So a 9.5x30x18 or a 9.5x22x18 would work too.
Since I'm not sure of the use-cases for these wheels (track, street, both, ultra light) or you driving style and preferences (staggered or square) it's hard to go further. You can use an offset calculator to play around with width and clearance though with parameters above. Apex EC-7, SM-10, and ARC-8 are candidates, although I'd double check with Apex.
Here's a link to a spreadsheet that may help and the calculator.
https://docs.google.com/spreadsheets...eQ3nGd8UEo5jKM
https://www.1010tires.com/Tools/Wheel-Offset-Calculator
May I ask why "no spacers"? I've used them front and rear with my track set-ups (like 50+ track days) and street too with zero issues. Porsche uses them OEM. With them you can run a square set-up you can rotate tires, which is awesome if you track.